D.YU., M. . The Effect Of Gypsum Content And Seasonal Variations On The Enzyme Activity And Respiration Properties Of Heavy Soils In Reclamation Status. The American Journal of Agriculture and Biomedical Engineering, [S. l.], v. 3, n. 06, p. 61–65, 2021. DOI: 10.37547/tajabe/Volume03Issue06-09. Disponível em: https://theamericanjournals.com/index.php/tajabe/article/view/232. Acesso em: 7 aug. 2025.